#include<bits/stdc++.h>
#define int long long
using namespace std;
signed main(){
    freopen("arena.in","r",stdin);
    freopen("arena.out","w",stdout);
    ios::sync_with_stdio(0);
    cin.tie(0); cout.tie(0);
    cout<<"This problem is too hard for me,I can not do it.I think I can get a high score in 2024 CSP-S.";
    cout<<'\n'<<"                                                                                  ------Mr. Xie";
    return 0;
}
